Table 4 Antibiotic susceptibility pattern of E. coli O157:H7 (n = 95)
Antibiotics class | Antimicrobial agents | Code | Potency (μg) | R | S |
|---|---|---|---|---|---|
| Â | Â | Â | Â | N (%) | |
Tetracycline | Tetracycline | T | 30 | 92 (96.8) | 3 (3.3) |
| Â | Oxytetracycline | OT | 30 | 90 (94.7) | 5 (5.3) |
Penicillin | Ampicillin | AMP | 10 | 90 (94.7) | 5 (5.3) |
| Â | Amoxicillin/Claculanic acid | AUG | 10 | 80 (84.2) | 15 (15.8) |
Cephalospirines | Cephalothin | KF | 30 | 90 (94.7) | 5 (5.3) |
| Â | Ceftazidime | CAZ | 30 | 30 (32) | 65 (78) |
| Â | Cefuroxime | CXM | 30 | 78 (82) | 17 (18) |
Carbapenems | Imipenem | IMI | 10 | 0 (0) | 95 (100) |
Phenicols | Chloramphenicol | CIP | 10 | 85 (89.5) | 10 (10.5) |
Aminoglycosides | Amikacin | AK | 30 | 6 (6.3) | 89 (93.7) |
| Â | Kanamycin | K | 10 | 5 (5.3) | 90 (94.7) |
| Â | Streptomycin | S | 10 | 80 (80.2) | 15 (15.8) |
| Â | Gentamycin | GM | 10 | 8 (8.4) | 87 (91.6) |
Quinolones | Ciprofloxacin | CIP | 5 | 12 (12.6) | 83 (87.4) |
| Â | Norfloxacin | NOR | 10 | 10 (10.5) | 85 (89.5) |
| Â | Enrofloxacin | ENR | 10 | 7 (7.4) | 88 (92.6) |
Foliate pathway inhibitor | Sulfamethazole/Trimethoprim | TS | 25 | 80 (80.2) | 15 (15.8) |